Heat exchange apparatus



W. H. OWEN HEAT EXCHANGE APPARATUS v Filed Oct. 4, 1929 June 30, 1931i VEA/ron lPatented `lune .rv i

wrnLIAivr HENRYWEN, or' LONDON, l.internship f nner yin(erinnern ,'APrARATUs Application lined ototerl, 1929,y siriarNq; 39.1368, and in `Great Britainreceinbgf 21,1928;

' This Vinvention relates to'heat exchangefapl c paratus of theflrind in whicha 'self-contained unit comprising'a bundl'eof cells ismounted in thefconduitof a hotfluidmedium, forthe .I-r purpose of'utilizing the heat thereof.v

f Aheinventionismore particularly intended.

for apparatus" for pre-heating` air for' combustion in furnaces by means ofthe rheatv con- Aj tainedA in theA hot vflue gases; f

fory furnaceait isalreadyfknown toprovide a heat exchange apparatus comprising a bundle of plates held together by transverse bolts and shaped, or otherwise adapted to form spacedY i. cells through which ispassed the air requiring to be heated, the unit being positioned in' a conduit for combustion products so 'that these are 'required to pass through the narrow ,inter-cellular spaces whereby they give up a ,53 Vcertain quantity of heat through the plates to the air passing through the cells. f

Y Suchunits have inlet and outlet ports for the air situated along the sameface, and they y require to be mounted or secured against the wall of the conduit for the combustion pr0d ucts with a closed VVjoint andjpreferablyin'a manner'permitting ready-,dismounting in case of need. I i v It will be appreciated that inmanyjcases y, Si@ jthe unit 'is of considerable weight, requiring Y Y vmechanical power to lift and transport, and

that when in position', the weight is taken by resting the unit on` asupporting surface. y

Y l {Now according to the present invention, the'v 35i Yunit is adapted to be drawn tightly against the wall of the conduit by means of eye-bolts or of hooleb'olts with screwedshanlrs passed through holes in abutment bars engaged behind fixed members mounted in the wall.

secured in any desiredfposition after thefurnaces, by way ofeXample.

In connection-with air pre-heating devices" It is to be understood that the bolts are loose relv 'atively to one or both of the parts requiringr against the supporting surface with the necesi sary tightness.r

The following description, however,

be" applied to air pre-heating apparatus for" *I The invention is illustrated in the accompanying drawings infwliichfV Y m Fig-1 illustrates a perspectives@ YF ig. 2 a" part Asectional elevation, Figs;A 3 and i .being views of details.

Referring now to the drawings, l presents the heat exchange unitV formed of bundlesv of l plates and having outlet andinlet ports 2,- 3

forthe'airor other medium requiring to be' heated. Within the area'of the said ports the; plates are held togetherby transverse tlirof'ugh'y bolts ll'. InFigure Ll the plates are shown v ,Y broken away within the ports so as toV illus-A trate the bolts? more clearly.` A 5- il-liistrates a framing formed of iron sections, vwhich :isv built inthe wall vof a conduit and' with which' Vthe-unit I is required to be tightly engagedf' The framing includes two vertical pillarsfV ofv T'section-,but it'will be understood that f with constructions ofsmallery capacity than that illustrated this detail `maybe variedt /Ac'cording to the invention, one or kmore abutment bars 7 lare laid across the flanges of-'thel' section'G, and the threadedshanksf `of hoolfbolts Sare passedf through holes in said bars; When the unit :l isinupesition, the hookfbolts 8 are engaged' in each caseover` one of the bolts, t and by tightening up knuts 855: Y 9behind the abutment bar 7 the unit 1 is held 7" f f' I against the frame 5 with sufficient tightness substantially to close the joint.

It will be lunderstood thatv althoughjin the Y* form shown only one bar Tis utilized in'ea'ch port, a'plurality of bars and bolts maylbef utilizedif' found necessaryand desirable. i l

Further-,"the application of this inventionfis:

, n parts have been assembled, and no adj ustment not limitedto those cases where through bolts v are used for'assembling the bundles ofjcells as it is obvious that special bolts or other suitable attachments may be provided lfor en-r gagingwith the, hook-baits.

n will* be understood ,that the' Weight 'ai d of the position of the heating unit e. g. lifting slightly or rocking a little, is necessitatedin order to render the bolts attachable since they can be attached in any casual. position of the m unit within thelordinary limits permitting performance of its functions.. Y, 1

the unit l issupported by any'suitablemea-ns 100" not illustrated in the figure, and that the hook-bolts 8 only control the horizontal approach of the unit to the framing. The bars 7 do not require to be lined to the framing, but are simply laid across the flanges of the T section members 6 for adjustment in the required position opposite to the selected bolt 4l. Thus the bolts can be lined up at any levels Where tl e cross-bars el happen to be situated, and the position to which the heating unit has been adjusted does not need to be changed even slightly for the mere purpose of setting up the boltsA It is to be understood that With the Jorm illustrated the air conduit l0 to which the port 2 is required to give access is of substantial height usually sulicient to permit a Workman to enter therein for the purpose of anchoring the units. ln Figure l have illustrated an arrangement in 'which tivo sets of units are set up one on each side of a central air conduit 10, as this shows a construction for units, but obviously for small units the arrangement may be suitably modified, lilith substan 'ai f smaller units Where T sections G do not form a usual part of the construction, the bars may be laid behind any suitable portion of the edge of the conduit 1l :tor the products of combustion e. g. behind a rail laid behind the brick- Work.

Usually I prefer to employ hook-bolts for convenience in attachment, but especially with smaller units eye-bolts may be provided which, of course, Will be set up in position in the units during their manufacture.

I claim:

l. In combination with a conduit, a heat transfer unit having spaced ports to register with the ports formed in the conduit, a traming carried by the conduit to receive the heat transfer unit, members loosely engaging the framing, and tensioning means located in said port-s and connected to the heat translier unit and cooperating With said members to support the heat transfer unit in fixed relation to the 'framing'.

2. A heat transiter unit having spaced ports, a conduit formed with openings With which said ports adapted to register, a framing carried by the conduit, bars loosely engaging the framing, and tensioning means inteifmediate the bars and unit to hold the latter in :fixed relation to the framing, said means fixing the bars with respect to the 'framing.

3. A heat transfer unit termed With spaced ports, a conduit having openings with which the ports are adapted to register, a framing carried by the conduit and presenting longitudinal strips, abutment bars loosely bean.

ing against said strips, and means to be removably connected to the unit and to said bars to hold the unit -and bars in fixed rela tion to the framing.

l. A heat transfer unit formed With spaced ports, a conduit with openings With which the ports are adapted to register, a framing secured to the conduit and presenting strips bridging the openings in the conduit, bars loosely bearing against said strips on the conduit side thereof, and means rigidly connect-v ing said bars and unit7 said means serving to bind the unit in Contact With the framing to hold the bars rigidly With respect to the strips.

5. A heat transfer unit having spaced ports, rods extending across said ports, a conduit formed With openings With which the ports of the unit are adapted to register, a framing defining the openings in the conduit and including strips bridging the openings, bars loosely bearing against the conduit side of the strips, hook members to removably engage the rods of the unit and pass through said strips, and securing means cooperating with the hooks beyond the bars to draw the unit into Contact with the 'framing and hold the bars rigidly with respect to the framing to provide rigid securing means for the unit.

In testimony whereof l ax my signature.

VILLIAM HENRY Ol/VEN. 

